Please read the sutra Entering the Great City of Vaishali so your daughter can hear it. Whenever you see some kind of spirit harm, this sutra should be read loudly.
There is one protection that I will make and send to you. It is the protection Liberation from Bondage of Body, Speech and Mind. Your daughter needs to wear it.
You should read the Golden Light Sutra for yourself and your daughter and also for the whole world, to pacify all sufferings, to bring perfect peace and happiness, and to purify all sentient beings and bring them to enlightenment.
When your daughter is possessed by spirits, you should visualize her as Tara and all the buddhas and bodhisattvas in the form of Tara absorb into her. So, you can do that visualization.